Generate Notice when error_reporting mode is completely disabled

Description

It's quite common, especially among beginners, to be confused about seemingly ok code not performing anything at all while also not generating any error. The issue may be that either the configuration has set error_reporting to 0 or that their own code contains error_reporting(0). While some might say that there could be valid use cases to have this in a production code, I'd prefer that the language didn't encourage this. For this reason, I think it would be a good idea to generate a Notice whenever error_reporting(0) is used or during PHP startup if INI config contains error_reporting=0. A Notice is generally not considered an error, but rather an informational message. It could reduce some confusion among beginner PHP programmers.

首先跟踪 error_reporting(0) 的处理方式，以及读取 error_reporting INI 设置的 PHP 启动路径。确定在每种情况下如何生成 Notice，以及现有的哪些行为或测试覆盖了这些入口点。当显式调用 error_reporting(0) 和使用 error_reporting=0 启动时都产生预期的 Notice，即表示完成。